Tarecgosa's Visage has been added to the "mounted" spells, but not to the actual mounts. Most likely confirms the theory that the "Tarecgosa Mount" datamined is just a transformation during the questline and not an actual mount.

Thrash damage has been reduced. Now deals [932 + 9.82% of AP] to [1151 + 9.82% of AP] damage, and causes all targets within 8 yards to bleed for [1743 + 5.01% of AP] damage over 6 sec. Down from [1310 + 19.2% of AP] to [1617 + 19.2% of AP] damage, and causes all targets within 8 yards to bleed for [2445 + 9.78% of AP] damage over 6 sec.